Revision: miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-523

[bpt/emacs.git] / lisp / gnus / compface.el

diff --git a/lisp/gnus/compface.el b/lisp/gnus/compface.el
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+;;; compface.el --- functions for converting X-Face headers
+;; Copyright (C) 2002 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
+;; Keywords: news
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;;; Code:
+
+;;;###
+(defun uncompface (face)
+  "Convert FACE to pbm.
+Requires the external programs `uncompface', and `icontopbm'.  On a
+GNU/Linux system these might be in packages with names like `compface'
+or `faces-xface' and `netpbm' or `libgr-progs', for instance."
+  (with-temp-buffer
+    (insert face)
+    (and (eq 0 (apply 'call-process-region (point-min) (point-max)
+                     "uncompface"
+                     'delete '(t nil) nil))
+        (progn
+          (goto-char (point-min))
+          (insert "/* Width=48, Height=48 */\n")
+          ;; I just can't get "icontopbm" to work correctly on its
+          ;; own in XEmacs.  And Emacs doesn't understand un-raw pbm
+          ;; files.
+          (if (not (featurep 'xemacs))
+              (eq 0 (call-process-region (point-min) (point-max)
+                                         "icontopbm"
+                                         'delete '(t nil)))
+            (shell-command-on-region (point-min) (point-max)
+                                     "icontopbm | pnmnoraw"
+                                     (current-buffer) t)
+            t))
+        (buffer-string))))
+
+(provide 'compface)
+
+;;; arch-tag: f9c78e84-98c0-4142-9682-8ba4cf4c3441
+;;; compface.el ends here